Advanced Surface Technologies, Inc. (AST) and its predecessor companies Front Range Plating and Swiss Lenox, have been providing metal finishing services to the Front Range of Colorado and to customers throughout the country since 1967.AST is a high-quality metal finishing company that specializes in electroless nickel plating, gold plating, silver plating, plating on magnesium, tin plating, electrolytic nickel plating, passivation and chemical conversion coating.